Blake R.-J., 1993, The Role of Syntax in Tracing the Development of Old Spanish, in Ashby William J. et al. (éds.), Linguistic Perspectives on the Romance Languages, Amsterdam / Philadelphia, John Benjamins Publishing Company, p. 363-375.

Vanhove M., 1994, The Island of Malta, a Crossroad for Influences? The Case of Auxiliary Verbs, in J. Brincat (ed.), Languages of the Mediterranean. Substrata. The Islands. Malta. Proceedings of the Conference held in Malta 26-29 September 1991, University of Malta, p. 286-292.

Blake R.-J., 1993, The Role of Syntax in Tracing the Development of Old Spanish, in Ashby William J. et al. (éds.), Linguistic Perspectives on the Romance Languages, Amsterdam / Philadelphia, John Benjamins Publishing Company, p. 363-375.

Vanhove M., 1994, The Island of Malta, a Crossroad for Influences? The Case of Auxiliary Verbs, in J. Brincat (ed.), Languages of the Mediterranean. Substrata. The Islands. Malta. Proceedings of the Conference held in Malta 26-29 September 1991, University of Malta, p. 286-292.